Insulated handle for tools



July 3, 1923.

C.P.L.HUSTON INSULATED HANDLE FOR TOOLS Original Filed April 2, 1919 4 e2 o w. 2 .6

Patented July 3, 1923.

UNITED STATES PATENT OFFICE.

INSLATE liallliE l Application filed April 2, 15319, Serial No. 236,91?.Renewed August f1, Serial No. 579,772.

To all 'Lo/wm tw/Lay concern.' g member is vulcanized to the tubular Beit known that l, (lr-marins l). L. lios member 18 ivliile the tubularmember is in non, a citizen of the United S' of the contracted positionas shown in Fig- America, and a resident of to.` of ure 3 so as toproduce a smooth surface of 50 5 Plainfield, in the county of Union and@tate rubberI suiaonndY the tubular member 18 of New Jersey, haveinvented an Improveand also to prei/*eA any rubber from being nient inInsulated Handles for Tools, of pressed in the'slot 1'?. rhis allows thetu-v ivliich the following is a specification. bular member 18 tocontract completely My invention relates to insulated lian- Withoutliavi any rubber in the slot 17 65 dles for tools. An object of myinvention to retard or prevent its contraction, which is to produce asimple and eflicient device might occur if the handle were vulcanizedWhich is inexpensive to manufacture and prhenwthe tubular member isexpanded. can be applied to the shank of a tool with i'fletalnc tubular1member preferably exgreat ease and celerity. AnotherNobycct et tendssubstantially the entire leihigth of the 70 my invention is to produce ahandle tha is handle so as to obtain a long gripping surmoreparticularly adapted to tools that arl face upon the shank of the tooland give used for cutting comparatively thick meta ample support to thesoft rubber covering` 1Q. and tools that-are used for electric avoriL ltwill be seen that the handle can be where the user might be subjected toshocks. apn

lied to 'the shanll: of any tool by merely Other objects will be in partobvious and inserting the shank into the ieirule or Will be pointed outin the following specifi bular member '18,vvhich 1s embedded .With-@ation in the msula lig member '12. It Will be Reference Will be had tothe accompanythat the shank 11 may vary' ing drawings forming a part ofthis speciiidiameter, so 1 lrefer to make 80 cation in which similarreference characters member 18 rather thin so it indicate correspondingparts throughout the can be asly expanded When a shank of several Views.maximum diameter is inserted into this tube Figure 1 is a plan View ofmy invention. 18. lt .vill be understood that this tubular Figure 2 is alongitudinal crosssection of member 18 can be made in any desired cross85 Figure 1. I section, such as square for example, to Figure 3 is anend vieW of the handle beadapt itself to the cross section of the shankfore the shank is inserted. 11. The rubber insulating material 12,Figure 41 is a similar vieiv after the shank Vwhich surrounds thetubular member 18,

is inserted. supplies an additional resiliency to the afore- 9oReferring to the drawings, l have shown said mentioned tubular member18. lt Will by Way of example merely, a handle 10, be seen that .vlieiithe shank 11 is inserted which is adapted to be used in connection inthe tubular member 18, the tubular mem- With the shank of a tool 11, andwhich comH ber 18 is expanded as shown in Figure a prises a tubularinsulating portion 12, hav and therefore bv .means of its resilien ingan elongated grip portion 13, hand sisted by the ipncy ofthe insulatguard portion 141, and an end portion terial 1Q, it i il iirmly Ygripthe .shank i1. The insulating part 12 of the handle 1Q 1s l havesupplied an additional locking means preferably made of vulcanizedrubber which which ce. be used if desired but is not esis vulcanized tosuch an extent that it alsent v iich consists of a leaf-spring 19 10o 7lows of great resiliency, insures a sul'istan connected to the shank 11,as shoxvn at 20, tial grip to the user, and also insulates the ha Ting abutton Q1 thereon which projects handle so as to prevent possible shockot' through the aperture in the tubular ineinthe user from electricity.Located Within ber 18, thereby locking said shank 11 to the theinsulating portion 12 is the tu 1l'ir handle 10. rl`his locking devicepre member 18, which is preferably of res ion et the handle in relationto the metal and preferably approximates in f and also prevents thehandle l section the shape of the shank of tie tU S ,4 the shank 11. Forrelea to Which the handle is to be applied. Tuoci device, it isnecessary to l, bular member 18 is slotted as indicated nail, example,:n the aperture Q3 17 preferably throughout its entire length. insulatedp t of the' handle 1Q and depress It Will be understood that the rubbercover the leaf-spring 19 against the back wall of the recess 24 in theshank 11. It will be understood that this additional locking device isused When the handles are interchangeable With various tools, that is ifthe diameters of the shank 11 and the tubular member 18 should decreaseby vvear'from usage to such an extent that the tubular member 18 Willnot contract enough to sui stantially grip the shank 11. Attached to theend 15 of the handle is a screw-eye which is connected to a Washer 26,embedded in the insulating material 12. This screweye may be used for.the purpose of protecting the end 15 ot' the handle and alsov tor thepurpose of suspending the handle or tool in any desired place.

It Will be understood that I do not Wish to conne myself to anyparticular conliguration of handle'as many designs or uses may be usedfor this handle Without departing from the spirit of the invention.

I claim:

1. In a device of the class described, in combination, an insulatedhandle adapted to be used in connection With the shank of a tool, andresilient means associated With and mounted within said handle forgripping said shank.

2. An insulated handle adapted to be used in connection With the shankof a tool, said handle comprising a resilient insulating member, and aresilient tubular member Within said insulating member for securing saidhandle to the aforesaid shank ot a tool.

3. An insulated handle adapted to be used in connection with the shankoit a tool, said handle comprising a resilient insulatiini'.- member,`and a split expandable tubular member for securingsaid handle to theaioresaid shank of a tool.

4t, An insulated handle adapted to be used in connection with the shankof a tool, said handle comprising a resilient insulating member, and aresilient tubular member Within said insulating member and ofsubstantially the same length as the aforesaid insulating member forsecuring said handle to the aforesaid shank of a tool.

5. An insulated handle adapted to be used in connection With the shankof a tool, said handle comprising a resilient insulating member, and aresilient slotted metallictubular member Within said insulating member,having a slot substantiallyT the same length as theaforesaid tubularmember, for gripping the aforesaid shank of atool.

6. An insulated handle adapted to be used in connection with the shankof a tool, said handle comprising a resilient 'tubular insulatingmember, a split tubular member Within said insulating member forgripping the aforesaid shank of a tool, and means for locking saidshank, which means serves to prevent the removal and rotation of saidshank.

7. An insulated handle adapted to be used in connection with a shank oiar tool, said handle comprising a resilient rubber tubular memlier. aresilient metallic member Within said rubber tubular member andextending substantially the vtull length ot the aforesaid rubber tubularmember i`or removably securing said handle to the aforesaid shank oit' atool.

S. An insulated handle adapted to be used in connection with the shankof a tool, said lr idle comprisin a resilient insulating tubular member,tted tubular men'iber ivithin said insulatingtubular member having a,slot substantially the full length of said tubular member, and means forlocking said tubular member to the aforesaid sha-nk of a tool whichmeans serves to prevent removal and rotation oi the shank.

9. ln a device ot the character described, in combination, asubstantially tubular resilientI member forming a handle, a secondresilient member Within said first resilient member and adapted toreceive the shank of a tool, said resilient members co-acting by theirresiliency to grip the aforesaid shank to prevent relative rotationalmovement betvfeen said resilient members and said shank, and means forpreventing relative longitudinal movement between said members and saidshank.

10. A handle, adapted to be used in connection With the shank ot a tool,comprising a metallic slotted member and a rubber cover vulcanizedthereto and extending over the slot therein, said metallic member andsaid rubber' cover co-acting to resiliently grip said shank.

11. A handle, adapted to be used in connection With theshank of a tool.,comprising a resiliently acting metallic slotted member Yfor grippingsaid shank, and a. rubber cover vulcanized upon the exterior of saidmetallic member and extending over the slot therein and adapted toreinforce and assist said metallic member in resiliently gripping saidshank.

12. A handle ttor use in connection with the shank of a tool comprisinga resilient member adapted to grip. a second resilient member alsohaving abilityT to grip and arranged to maintain itself on a shank, saidfirst gripping member adapted to surround the second gripping-member andto co-act therewith to firmly secure said members to said shank.

ln testimony whereof, l have signed mv name to this specification this19th day ouf htarch, 1919.

CHARLES P. L. HUSTON.

